Structure at include/linux/blkdev.h, line 733 References: block/blk-integrity.c, line 42 block/blk-integrity.c, line 72 block/blk-merge.c, line 122 drivers/block/floppy.c, line 2462 drivers/block/floppy.c, line 2502 drivers/block/nbd.c, line 256 drivers/block/nbd.c, line 363 drivers/block/ps3disk.c, line 94 drivers/block/ps3disk.c, line 132 drivers/s390/block/dasd_diag.c, line 493 drivers/s390/block/dasd_eckd.c, line 1724 drivers/s390/block/dasd_eckd.c, line 1909 drivers/s390/block/dasd_eckd.c, line 2216 drivers/s390/block/dasd_eckd.c, line 2402 drivers/s390/block/dasd_fba.c, line 258 drivers/s390/block/dasd_fba.c, line 382 drivers/s390/char/tape_34xx.c, line 1120 drivers/s390/char/tape_3590.c, line 631 include/linux/blkdev.h, line 733